Maintenance; Cleaning And Storage - Extech Instruments CT80 User Manual

AFCI Troubleshooting Suggestions
Measurement
AFCI Test
Shared
Neutral
Test

Maintenance

WARNING: To avoid electrical shock, remove all inputs before opening the case.

Cleaning and Storage

Periodically wipe the case with a damp cloth and mild detergent; do not use abrasives or solvents
to clean the instrument.
Pack and store the meter safely when not in use. Do not allow the meter to remain connected to live
circuitry when not in use.
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Expected Problem
Result
AFCI trips AFCI
does
not trip
AFCI AFCI
does does
not trip trip
Possible
Causes
AFCI installed
incorrectly
AFCI
defective
High source of
line
impedance
or resistance
Shared
neutral
exists
ShopExtech
13
Possible
Solutions
Check wiring and re-
wire device according
to manufacturer's
instructions
Replace AFCI
Check for high voltage
drop
Rewire circuit per AFCI
manufacturer's
Instructions
1.877.766.5412
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CT80-EN V1.1 08/12